After update twinview no longer recognizes SAMSUNG LCD

[Providence SALUMU M.]

- Monitor : SAMSUNG LCD LE40R8
- Graphics Card : GeForce 8400M G
- kernel 2.6.27-3-generic
- xsever-xorg 1:7.4~2ubuntu1 (intrepid)

Updated from nvidia-graphics-drivers-177 (177.70-0ubuntu1) to nvidia-graphics-drivers-177 (177.70-0ubuntu2), now nvidia-settings can no longer detect SAMSUNG LCD LE40R8 monitor from AGP port. It now only displays CRT-0 and max resolution is 640x480 while it used to be 1280x800.

[lspci]
00:00.0 Host bridge [0600]: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub [8086:2a00] (rev 03)
     Subsystem: Samsung Electronics Co Ltd Device [144d:c510]
01:00.0 VGA compatible controller [0300]: nVidia Corporation GeForce 8400M G [10de:0428] (rev a1)
     Subsystem: Samsung Electronics Co Ltd Device [144d:c510]

[Providence SALUMU M. (providence-salumu)]

I checked against a DELL Monitor today, TwinView seems to not definitely be working any more :(

[Providence SALUMU M. (providence-salumu)]

Just checked against today's update to nvidia-177.76, much more modes are available (1024x768 @60Hz, 800x600 @ 60Hz, ...) but the SAMSUNG Monitor still doesn't display anything.
Again, No EDID is detected (/var/log/Xorg.0.log) and the monitor stays blank. Turning on the monitor for the first time flashes PC screen for about 0.1 sec and then displays "No input signal".

[Bryce Harrington (bryce)]

Hi providence-salumu,

Please attach the output of `lspci -vvnn`, and attach your /var/log/Xorg.0.log file from after reproducing this issue. If you've made any customizations to your /etc/X11/xorg.conf please attach that as well.

[Providence SALUMU M. (providence-salumu)]

Hi Bryce,

I attach the files you requested. I have to say that reinstalling old versions of linux (ubuntu) does not solve my problem, neither does using an nvidia-177.73 driver.
I'm wondering now if it is not an electronic problem related to my nvidia video card. Maybe some of its components are down? But how can I tell?

I have also noticed another weird behaviour: when I turn on the computer, sometime the computer crashes (two blinking led), sometimes the gdm fails to start (low resolution problem) and I have to reboot the computer many times before the gdm finally stabilizes.

Thank you for any help

[Providence SALUMU M. (providence-salumu)]

I forgot to add that I'm using a Samsung Q45 laptop.

[Steve Beattie (sbeattie)]

Marking back as new since the original reporter has provided the requested information.

[Bryce Harrington (bryce)]

[This is an automated message]

In Jaunty (9.04), we are dropping the nvidia-graphics-drivers-177 package, which
is now superseded by then nvidia-graphics-drivers-180 package.

  http://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-180

To transition your bug into the new package, we need your help. Please do the following:

 a. Verify the bug occurs in Jaunty with the -180 driver
     (ISOs: http://cdimage.ubuntu.com/releases/jaunty/)
 b. If you haven't already, please include in the bug:
     * Your /var/log/Xorg.0.log
     * Your /etc/X11/xorg.conf
     * The output of `lspci -vvnn`
     * Steps to reproduce the issue
 c. Under Affects, click the down arrow to the left of 'nvidia-graphics-drivers-177'
 d. Edit the Package to change 'nvidia-graphics-drivers-177' to 'nvidia-graphics-drivers-180'
 e. Click Save Changes

Thank you!

[We'll expire the remaining -177 bugs in a month or so.]

[Bryce Harrington (bryce)]

[This is an automated message]

In Jaunty (9.04) we have dropped the nvidia-graphics-driver-177 package, as
it is superseded by nvidia-graphics-drivers-180.

Because of this, we are closing this bug as expired.

You are encouraged to file your -nvidia bug reports against the
nvidia-graphics-drivers-180 package. Please be aware that because this
is a proprietary graphics driver, the amount of bug support we can
provide at the distro level is very limited.